Jack.



b. H. was. ucx.

I Pafiehtsd F6117, 1911.

APPHOATIOH FILED MAR. 91.

wise in ured, and delta 4 i he'capaeit to elevate the "to be hereinafter described and are quickly performed.

UNITED STAT PATENT OFFICE.

oscsn n. urns, or

COLL HILL, PENNSYLVANIA, ABQIGNOB OI our-nan 1'0 10m! IOUALION'I, OI FRANKLIN, PENNSYLVANIA.

JACK. I

983,419. smllnthl r 1mm 1mm Patented Feb. 7, 1911.

Application lied larch I1, ll10.- lertai No. "6,010.

To all whom it may concern: showing a modified construction of the lift- Be it known that I, Oscan H. Am, a cmzcn of the United States residing at Coal Hill, in the,'counto! ifenango and State of-Pennsylvania, ave invented certam new anduscful Improvements in Jacks, of which the following is a specification.

My invention relates to a jack and has for its object to provide certain new and useful improvements in devices of this sort claimed.

The jack of my invention is intended particularl .for use in connection with automobiles, al hough obviouelyit might be put to other uses, and with this particular use n v ew, it ll one of my nmary objects to providc a device of aimp e and economical eonetruction which can be readily applied to one end pl an automobile axle end operated almost ipetantaneouelg to lift the adjacent wheel to a'considera is distance, from the and, fat-enough for instance, so that it t e tire of the w eel be unctured or otherit may be removed rom the run and repaired, or a new tire put on in its place.

A further object of the invention'is to provide a jack so constructed. that the liftmg operation me be accomplished in two successive ste load being raised a certam distance y a roclrin movement of the device or part of ,the device, on a rollin or otherwise movable fulcrum, the load be ng given thereupon, a further elevation. by n relative movement between parts of the de- -viee so rocked-this arrangement lgivin oad or a considerable d' ance by movements which Theinventiou has for further objects the several novel cdnibiuationa of parts to be hereinafter fully described and claimed.

The invention is illustrated in a referred embodiment in the accompanying rawings, wherein I Figure 1 is a longitudinal sectional view showing the device as first applied to the axle of an automobile or other vehicle. Fig. 2 a similar view illustratin the position of the parts after both lifting operations luwp bet-n perfomnml. Fig. 2! in on oml (inwhen. lug. 4 a nmdili'cation showing a preferred form of pillow or axle support, and Fig. 5 a fragmentary sectional view the cam. iike characters of reference indicate like parts in the several figures of the drawings.

Reterringdo the draw re reeents a base or carriage prov on ei or ,side with tlIzle vfvheels or rollershg.h and at the M f withto oot12 romw' rojects,'preerably,. the stud l8 adapted a heenpged by the hollow end of a lever 14.

15 is a standard which is refer-ably adjustabl'y mounted on the 10. The standard may, for example, have a threaded ogeninfiltherein to receive the threaded stem 1 of t e standard: The standard 15 to;- miinghtee at thebppper eatsl in a Mosul-74m wi ismova moun aeupo evice 18 rovided with pillow or axle su part 9. .The be old from seal of a set screw 20 which is threaded the socket 17 and extends into aslot 21 in the supporting device.

eu rt device 18 me den 71135.net mean! The axle to which the'jack is a plied -is I shown-at 22 and the adjacent w at The standard 15 has the openugg or slot 24 in which is the lifting cam pivoted at 20, the cam bearing against the end of the sup I preferably provided at this point with the anti-friction roller 27. e roller 97 and the cam 26 are engaged at tion of the supportinidevice. This imgagm ment me be e ected y notching the perimcter oft ecam,asahownst28..

As providing a simple means for rotating the cam 25 it is formed preterably with a stem 29 which has the same diameter as the stud 18. If this be the case the lever 14 may be first used on the stud and afterward employed to rotate the cam'."

The device for snpportmig the axle may be constructed as shown in t is first three tignrca but a prcferableconstnlction ie'ahown in Mg. 4 in which the support consists of a stem 30 formed on the top with a in; 81 on which is pivoted the'rocking illow 32.

While the on \gelnent of antrfriction roller 2" with tie notch 28 of can! 25 is. under ordinary ciwnnmtnnrcs, suilicionh to kee the Illll'lH in their extended or lifting pomtion. regardless of the location of the 'pivotnl point 26. this ong'ngement lnny be made sul'nr by locating the pivotal point of rting device 18, which is e elevated poait'he cmn forward of the axial line of the dentilizcd'to obtain an increase of elevation, n v

\"u'e. 'lbia arrangena-nt is shown in Fig.

5 inlwhieh the cam ltll'ia pivoted at the mint- M. In this arrangement tho cam obvmualy need not be notched.

As the device, as shown and described, might be modified in certain respects without departure from the par oar and scope of my invention, I do not nmt myself to the particular devices,constructiomarrangemeats and proportion of parts shown, except. so tar. as these particulars are made. limitations on certain of the claims herein.

.The operation of the device is as follows: Supposin the jack is to be used for elevatin the w eel of an' automobile, the tire of wfiieh baa become punctured or otherwise in'jnrednnd is consequently tletlnted, the jaelt'ia placed afainat the axle of the automobile in the ob 1. B means ot' the lever-14 which is enga with the stud 13, the device may be roe ed and pushed forward. the wheels-.11

constituting a movable fulcrum for the device. Preferably, the diameter of the wheela I1 and the length of the foot. 12 are so proportioned that when the foot t'mlltHt,

: into contact with the groundi the standard 15v is tilted so that the ax pillow 29 is etl'ectivel .between the support attordcdby the whee s 18 and the foot, the stability of the ,j-ack heing assured by. this arrangement of the parts. The lever it lfi then removed from: the stud l3 and is pgst over the end of the stem 2! flitting cam 25. By a single movement of this lever the supporting member 18 is rai ed. in t e elevated position by the engagement of the anti-friction roller 27- with the notch 28 in the peripher of the cam. lo the va rrangement shown l'n'Fig. 5 the saint-result. is

obtained, whether the .eam be notched or not,

by the position..ot' tla.- pivotal point ot the ill , By means ol." a 'aiek constructed a's deaerlbed above it wi l be seen that the load, the automobile or whatever it ma be, may be elevated at very considerable distance by movements which are very simple and can he quickly performed. '1 ic'amount of elcnation that can he obtained by the roehin of .the device as a whole on'ita movable t'u e'mn in practically limited, ar it. is not feasible to apply t to jack' to the axle at. a very oblique angle. .01: the other hand. there are practical limitations to the ran e or movenwnt that can be obtained in a d btire of this sort by cam action. mg! the prmeiplo of using the device as a ahole as a lev l.- with the cam principle lque position shown in Fig:

0 support or jacltj is provided which is cheap to man-ut'm-t-ure, light and com met inits structure 'and Whit'ltt'nH be app ied to the axle and operated almost ilmtantammualy. I house of the rocking pillow shown in Fir-4 facilitates the pro n seating of the air a on the jack. This revive is not,-however, a citieally claimed herein ,as it in so elainiod in my co-pending n iphcntion Serial No. 650618, filed March 2'1, 1910.

I claim: p

1. A jack "comprising in combination, a rockin base, wheels constituting a movable fn' cram for said base, a standard having a threaded engagement with said base, a for the purpose of vertical adjustment, axle sustaining means movably mounted with respect to'the standard, said base harin-y a support other than said wheels which, when in contact with the ground, brin s the point at. which the axle is sustained iiet wheels and said other support; and a cam for raising said axle sustaining means with respect to'said standard. r 3 2. A 'aclc comprising in combination a rocking H150, wheels. constituting a movable l it is heldwhieh is. adapted to bear upon the ound and when in eont'act'with the ground rings the point at which the axle is sustained between the wheels and laid other support, said standard bei|ig.for|ned with a slot, a cam pivoted in which extenda out or the slot, a lever adapted to be rcmovably engaged .with the stem of aaid cam, and means on said-base adjacent the support thereon adapted to he aimilarly' engaged by said lever, substantially as and for the purpose deacrila-d.

. 3. A "ack' comprising in combination a rim-hingnee, wheels constituting a movible fulcrum for said lame, a standard whic r is ween the said slot having a stem.

vertical] .1 adjustable with respect to said base, ax o sustaining memmmovably mounted with respta't to the standard; aaidbaac having a support. other than said whoehl which, when It is in contact with the ground, ln'ingn the point at which the axle in me- -tained between said wheels and said other -aupport; and a can: for raising said axle mix-altaining na-ana withjrespcctto aaid stamittl't OSCAR ll. AMES. Wit lltfi llli By nombintnas. .l'l. Snore, Roman? Srmza. 

